Thanks folks - i'll look that site up as well Dark. I knew it was going to have something to do with packet crafting. I checked out Scapy yesterday as well. Way over my head at this point - BUT THAT'S THE FUN OF IT!!!mu hu hahahaha =)

It helps to learn about and study the system before trying to defeat it rather than just following instructions with little background/knowledge which will get you no where when dealing with different scenarios, try read some books on firewalls, maybe this is a good start: